The GR is over 100 years old. The beautiful Einstein's relativity theory of space-time and gravity is one of the founding block of modern physics and cosmology in particular. In my talk, I shall discuss why one would like (and actually really need) to design and convey tests of the theory on cosmological scales. Then, I will also present a handful of theories (called Modified Gravity) that aim...
The mass of cosmic structures, such as galaxies and galaxy clusters as well as their surrounding dark matter (DM) halos, is a key quantity to characterize themselves. In the scenario of the hierarchical structure formation in the Universe, mergers between them are one of the main drivers for their mass evolution. Various physical mechanisms non-linearly couple with each other and work all...
The presence of a non-baryonic dark matter component in the Universe is inferred from the observation of its gravitational interaction. If dark matter interacts weakly with the Standard Model it would be produced at the LHC, escaping the detector and leaving a large missing transverse momentum as their signature. The experiments at the LHC have developed a broad and systematic search program...
An extension of the standard RMF theory by including interaction between sigma and delta mesons is proposed. The first-order and second-order interaction between those mesons is calculated separately. It is shown that in both cases that the symmetry energy Esym can be diminished to some extent in the specific range of baryon density. However, for the second-order interaction Esym can take even...
